US2024162472A1PendingUtilityA1

Winding Apparatus and Winding Method for Electrode Connection Film and Electrode Roll

Assignee: LG ENERGY SOLUTION LTDPriority: Feb 14, 2022Filed: Feb 8, 2023Published: May 16, 2024
Est. expiryFeb 14, 2042(~15.5 yrs left)· nominal 20-yr term from priority
H01M 10/0587H01M 10/0431H01M 10/0409H01M 4/04B65H 19/28B65H 19/29Y02P70/50Y02E60/10B65H 2301/41427B65H 2301/414422B65H 2801/72
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Claims

Abstract

A bobbin installation unit includes a bobbin, a film supply unit configured to supply an electrode-connecting film to the bobbin, a transfer unit configured to transfer the electrode-connecting film installed in the film supply unit to the bobbin installation unit, an adhesive tape attaching unit installed above the bobbin installation unit and configured to attach an end portion of the electrode-connecting film drawn out to the transfer unit to the bobbin. It also includes a double-sided tape attaching unit configured to attach a double-sided tape to the electrode-connecting film wound on the bobbin, and a frame body on which the adhesive tape attaching unit and the double-sided tape attaching unit are movably installed.

Claims

exact text as granted — not AI-modified
1 . An electrode-connecting film winding device comprising:
 a bobbin installation unit configured to install a bobbin;   a film supply unit configured to supply an electrode-connecting film to the bobbin;   a transfer unit configured to transfer the electrode-connecting film installed in the film supply unit to the bobbin installation unit;   an adhesive tape attaching unit installed above the bobbin installation unit and configured to attach an end portion of the electrode-connecting film to the bobbin;   a double-sided tape attaching unit configured to attach a double-sided tape to the electrode-connecting film wound on the bobbin; and   a frame body having the adhesive tape attaching unit and the double-sided tape attaching unit installed, wherein the adhesive tape attaching unit and the double-sided tape attaching unit are moveable with respect to the frame body.   
     
     
         2 . The electrode-connecting film winding device of  claim 1 , wherein the bobbin installation unit includes a winder and a chucking member, wherein the winder is configured to wind the electrode-connecting film by rotating the bobbin and the chucking member is configured to fix the bobbin in the winder. 
     
     
         3 . The electrode-connecting film winding device of  claim 1 ,
 wherein the adhesive tape attaching unit is configured to move in a width direction of the bobbin, and   wherein the adhesive tape attaching unit is configured to fix the electrode-connecting film on the bobbin by attaching an adhesive tape to the end portion of the electrode-connecting film while moving in the width direction of the bobbin.   
     
     
         4 . The electrode-connecting film winding device of  claim 3 ,
 further comprising a cutting unit communicating with the adhesive tape attaching unit,   wherein the cutting unit is configured to cut the electrode-connecting film to which the double-sided tape is attached by the double-sided tape attaching unit.   
     
     
         5 . The electrode-connecting film winding device of  claim 4 , further comprising a finishing sticker attaching unit disposed below the cutting unit,
 wherein the finishing sticker attaching unit is configured to fix the electrode-connecting film by attaching a finishing sticker to a cut end portion of the electrode-connecting film.   
     
     
         6 . The electrode-connecting film winding device of  claim 1 , wherein the double-sided tape attaching unit is installed above the transfer unit, wherein the double-sided tape attaching unit is configured to move in a vertical direction. 
     
     
         7 . The electrode-connecting film winding device of  claim 1 , further comprising a release paper peeling unit configured to peel a release paper from the double-sided tape attached to the electrode-connecting film. 
     
     
         8 . The electrode-connecting film winding device of  claim 1 , wherein the transfer unit includes:
 An at least one base plate configured to support the electrode-connecting film being transferred,   an at least one driving roller configured to transfer the electrode-connecting film, and   a moving roller configured to maintain a tension in the electrode-connecting film being transferred, wherein the moving roller is moveable.   
     
     
         9 . A method of winding an electrode-connecting film, the method comprising:
 installing a bobbin;   contacting an end portion of an electrode-connecting film with the bobbin;   fixing the electrode-connecting film to the bobbin by attaching an adhesive tape to the end portion of the electrode-connecting film;   winding the electrode-connecting film on the bobbin by rotating the bobbin;   attaching a double-sided tape to the electrode-connecting film wound on the bobbin; and   cutting the electrode-connecting film on which the double-sided tape is attached.   
     
     
         10 . The method of  claim 9 , further comprising, after the attaching of the double-sided tape to the electrode-connecting film, peeling a release paper from the double-sided tape. 
     
     
         11 . The method of  claim 9 , further comprising, after the cutting of the electrode-connecting film to which the double-sided tape is attached, fixing the end portion of the electrode-connecting film by attaching a finishing sticker to the end portion of the electrode-connecting film, wherein the end portion of the electrode-connecting film is adjacent to a portion of the electrode connecting film to which the double-sided tape is attached. 
     
     
         12 . An electrode roll comprising:
 a bobbin;   an electrode-connecting film wound along a circumference of the bobbin in a wound state;   a double-sided tape attached to an outermost end portion of the electrode-connecting film in the wound state; and   an electrode communicating with the double-sided tape, the electrode in the wound state along the circumference of the bobbin along an exterior side of the electrode-connecting film.   
     
     
         13 . The electrode roll of  claim 12 , comprising an adhesive tape configured to bond the bobbin to a winding start end portion of the electrode-connecting film. 
     
     
         14 . The electrode roll of  claim 12 , wherein the electrode-connecting film includes one or more of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), oriented polypropylene (OPP), polyimide (PI), polybutylene terephthalate (PBT), polyester, polyacetal, polyamide, polyethersulfone, polyphenyleneoxide, polyphenylenesulfide, polyethylenenaphthalene, or flexible silicone. 
     
     
         15 . The electrode roll of  claim 13 , wherein the adhesive tape is an oriented polypropylene (OPP) tape.

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